Build a Reactor Codes
All current and previous game codes for Build a Reactor on Roblox.
1 active0 expired| Code | Description | Status | Works |
|---|---|---|---|
| This code credits your account with 50,000 Cash. | Active |
How to claim codes in Build a Reactor
First, click the Store button on the left side of the screen:

Scroll all the way down. Then, paste the code into the Insert Your Code... box and click the Redeem button:

Roblox Den's code tracker continually scans Roblox.com, social channels, user reports, game developer networks and other sources, and we've had 729,199 reports from players on Works, Doesn't work and new codes. But before any code is listed on our site, or marked as Expired, our Code Guardians check in-game that it works and that its rewards and requirements are right. That's why every code you try on Roblox Den works, and 0 other players have copied a code since you landed on this page:.
Checks every code in-game
Nicole tests every new Build a Reactor code in-game, and re-checks any code that enough players report as not working.
Keeps this page up to date
When Build a Reactor changes how codes are claimed, adds a new requirement or launches a new promotion, Nicole makes sure it's covered here first.
Lists exact rewards and requirements
Every code shows exactly what it gives and any level or gamepass it needs, so you know what you're getting before you redeem it.
Nicole isn't the only Code Guardian around here: Erwin and Renato check new codes for this game whenever Nicole is away or asleep.
Meet the rest of the teamAbout Build a Reactor
Welcome to Build a Reactor! In this game, your main goal is to build and evolve your very own reactor by collecting and processing materials.
To play, you roll for powerful drills and place them to mine various ores. You then use these collected ores to evolve your Reactor and generate energy. Once you have generated energy, you must wait for the best market price to sell it for maximum profit. Along the way, you can purchase upgrades to boost your progress, discover rarer reactors, drills, and ores, and work your way up to become the ultimate energy tycoon.

